<html>
<head>
<title>First Servlet</title>
</head>
<body bgColor="red">
<form name="login" action="Ex1" method="post">
<input type="text" name="username1"></input>
<input type="text" name="username2"></input>
<input type="text" name="username3"></input>
<input type="text" name="username4"></input>
<input type="submit" value="Submit" ></input>
</form>
</body>
</html>
//Servlet
//------------------------------
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class Ex1 extends HttpServlet
{
public void doPost(HttpServletRequest req,HttpServletResponse res)
throws ServletException,IOException
{
try
{
res.setContentType("text/html");
PrintWriter writer = res.getWriter();
writer.println("<html>");
writer.println("<head><title>First Demo</title></head>");
writer.println("<body>");
writer.println("<hl>Hello</hl>");
Enumeration e = req.getParameterNames();
while(e.hasMoreElements())
{
String pname = (String)e.nextElement();
String pvalue = req.getParameter(pname);
writer.println(pname + ":" + pvalue);
writer.println("<br>");
}
writer.println("</body></html>");
writer.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
//XML
//-------------------------------
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app>
<display-name>welcome to Hello Screen</display-name>
<description>welcome to Hello Servlet</description>
<servlet>
<servlet-name>first</servlet-name>
<servlet-class>Ex1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>first</servlet-name>
<url-pattern>/Ex1</url-pattern>
</servlet-mapping>
</web-app>
